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Title: Data embedding

A method of embedding auxiliary information into a set of host data, such as a photograph, television signal, facsimile transmission, or identification card. All such host data contain intrinsic noise, allowing pixels in the host data which are nearly identical and which have values differing by less than the noise value to be manipulated and replaced with auxiliary data. As the embedding method does not change the elemental values of the host data, the auxiliary data do not noticeably affect the appearance or interpretation of the host data. By a substantially reverse process, the embedded auxiliary data can be retrieved easily by an authorized user.
 [1];  [2]
  1. (160 Monte Rey S., Los Alamos, NM 87544)
  2. (316 Bryce Ave., Los Alamos, NM 87544)
Issue Date:
OSTI Identifier:
Sandford, II, Maxwell T. (160 Monte Rey S., Los Alamos, NM 87544);Handel, Theodore G. (316 Bryce Ave., Los Alamos, NM 87544) LANL
Patent Number(s):
US 5659726
Contract Number:
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Country of Publication:
United States
data; embedding; method; auxiliary; information; set; host; photograph; television; signal; facsimile; transmission; identification; card; contain; intrinsic; noise; allowing; pixels; nearly; identical; values; differing; value; manipulated; replaced; change; elemental; noticeably; affect; appearance; interpretation; substantially; reverse; process; embedded; retrieved; easily; authorized; user; auxiliary information; authorized user; host data; auxiliary data; nearly identical; noise value; substantially reverse; retrieved easily; reverse process; embedding auxiliary; embedded auxiliary; embedding method; television signal; identification card; facsimile transmission; allowing pixels; data embedding; contain intrinsic; data contain; intrinsic noise; /707/358/380/382/713/